Mathematics
21 Online
OpenStudy (anonymous):
give any 2 example sums for each of the following:
(a+b)whole square
(a-b)whole square
(a+b)(c+d)
(a-b)(c+d)
(a-b)(c-d)
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
\[(a + b)²\]
Example 1: (x + 3)²
= (x + 3)(x + 3)
= x² + 3x + 3x + 9 Distributive method
= x² + 6x + 9
* Notice the middle term.
Example 2: (x - 4)²
= (x - 4)(x - 4)
= x² - 4x - 4x + 16 Distributive method
= x² - 8x + 16
* Again, notice the middle term.
OpenStudy (anonymous):
u said example
OpenStudy (anonymous):
(a+b)whole square
a²+2ab +b²
OpenStudy (anonymous):
now find for (a - b)²
OpenStudy (anonymous):
got the
answer
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
@dharmikhokhani
OpenStudy (anonymous):
U WANT A QUESTION FOR THE FORMULA
OpenStudy (anonymous):
okay solve
(2a + 5b)²
OpenStudy (anonymous):
@dharmikhokhani
OpenStudy (anonymous):
(4x + 3y)²
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
idk
OpenStudy (anonymous):
sorry
OpenStudy (anonymous):
HEY WHAT YOU NEED HELP WITH
random231 (random231):
yeah exactly i cant understand the question!
OpenStudy (anonymous):
dude man bro, nobody understands the question.
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
jamaican me crazy.
OpenStudy (anonymous):
...
what are you even talking about
OpenStudy (anonymous):
u need to form questions in whch u can use the formulas above
OpenStudy (anonymous):
what formulas? you mean expressions?
OpenStudy (anonymous):
yup, rght
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
for (a+b)^2, i guess you could have a problem like this:
find the length of the hypotenuse
|dw:1397828107273:dw|